US20140275149A1 - Abuse deterrent compositions and methods of use - Google Patents

Abuse deterrent compositions and methods of use Download PDF

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US20140275149A1
US20140275149A1 US14/218,696 US201414218696A US2014275149A1 US 20140275149 A1 US20140275149 A1 US 20140275149A1 US 201414218696 A US201414218696 A US 201414218696A US 2014275149 A1 US2014275149 A1 US 2014275149A1
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drug
pharmaceutical composition
auc
composition
morphine
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Manish S. Shah
Ray J. Difalco
Stefan Aigner
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Ohemo Life Sciences Inc
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Inspirion Delivery Technologies LLC
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Publication of US20140275149A1 publication Critical patent/US20140275149A1/en
Assigned to INSPIRION DELIVERY SCIENCES LLC reassignment INSPIRION DELIVERY SCIENCES LLC ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: INSPIRION DELIVERY TECHNOLOGIES, LLC
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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/20—Pills, tablets, discs, rods
    • A61K9/2072—Pills, tablets, discs, rods characterised by shape, structure or size; Tablets with holes, special break lines or identification marks; Partially coated tablets; Disintegrating flat shaped forms
    • A61K9/2086—Layered tablets, e.g. bilayer tablets; Tablets of the type inert core-active coat
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K31/00—Medicinal preparations containing organic active ingredients
    • A61K31/33—Heterocyclic compounds
    • A61K31/395—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins
    • A61K31/435—Heterocyclic compounds having nitrogen as a ring hetero atom, e.g. guanethidine or rifamycins having six-membered rings with one nitrogen as the only ring hetero atom
    • A61K31/47—Quinolines; Isoquinolines
    • A61K31/485—Morphinan derivatives, e.g. morphine, codeine
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K45/00—Medicinal preparations containing active ingredients not provided for in groups A61K31/00 - A61K41/00
    • A61K45/06—Mixtures of active ingredients without chemical characterisation, e.g. antiphlogistics and cardiaca
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/20—Pills, tablets, discs, rods
    • A61K9/28—Dragees; Coated pills or tablets, e.g. with film or compression coating
    • A61K9/2806—Coating materials
    • A61K9/2833—Organic macromolecular compounds
    • A61K9/284—Organic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. polyvinyl pyrrolidone
    • A61K9/2846—Poly(meth)acrylates
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K9/00—Medicinal preparations characterised by special physical form
    • A61K9/48—Preparations in capsules, e.g. of gelatin, of chocolate
    • A61K9/50—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals
    • A61K9/5073—Microcapsules having a gas, liquid or semi-solid filling; Solid microparticles or pellets surrounded by a distinct coating layer, e.g. coated microspheres, coated drug crystals having two or more different coatings optionally including drug-containing subcoatings

Definitions

  • the present invention provides orally administrable pharmaceutical compositions, methods of administration, and methods of making the same.
  • the present invention relates to orally administrable pharmaceutical compositions, and specifically relates to compositions that are designed to reduce the potential for improper administration of medications and their use in a non-indicated or non-prescribed manner.
  • the present invention can comprise any drug, and it is especially useful with medications that are subject to abuse, such as drugs affecting the central nervous system.
  • the present invention is particularly useful for pain medications, medications to reduce or eliminate anxiety attacks, stimulants and sleeping pills.
  • these general types of drugs there is the potential of abuse and improper administration that may result in drug overdose, addiction, suboptimal efficacy, and/or death.
  • Opioid agonists are substances that act by attaching to specific proteins called opioid receptors, which are found in the brain, spinal cord, and gastrointestinal tract. When these drugs attach to certain opioid receptors in the brain and spinal cord, they can effectively block the transmission of pain messages to the brain.
  • Opioid analgesics such as oxycodone, morphine, oxymorphone, hydrocodone and hydromorphone are successful and therapeutically useful pain medications.
  • Opioids undergo phase 1 metabolism by the cytochrome P450 (CYP) pathway, phase 2 metabolism by conjugation, or both, as described in Smith H, “Opioid Metabolism,” Mayo Clin. Proc., 2009; 84(7):613-624.
  • Morphine also known as (5 ⁇ ,6 ⁇ )-7,8-didehydro-4,5-epoxy-17-methylmorphinan-3,6-diol, is an example of a potent opioid analgesic used in the treatment of acute, chronic, and severe pain.
  • Major metabolites of morphine include morphine-3-glucuronide (M3G), morphine-6-glucuronide (M6G), hydromorphone, normorphine (NM) and minor metabolites such as morphine-3,6-diglucuronide, morphine-3-ethereal sulfate, normorphine-6-glucuronide, and normorphine-3-glucuronide.
  • Morphine-6-glucuronide (M6G) a major metabolite of morphine, is formed by glucuronidation. M6G and morphine both demonstrate analgesic activity.
  • Oxycodone also known as (5R,9R,13S,14S)-4,5 ⁇ -epoxy-14-hydroxy-3-methoxy-17-methylmorphinan-6-one, is an opioid analgesic used for the treatment of pain.
  • Major metabolites of oxycodone include noroxycodone, ⁇ oxycodol, ⁇ oxycodol, oxymorphone, ⁇ oxymorphol, ⁇ oxymorphol, noroxymorphone, ⁇ noroxycodol, ⁇ noroxycodol, noroxymorphone, 14-hydroxydihydrocodeine, and 14-hydroxydihydromorphine.
  • Oxymorphone and noroxycodone are the most commonly known major metabolites of oxycodone.
  • Oxymorphone also known as 14-hydroxydihydromorphinone and 4,5 ⁇ -epoxy-3,14-dihydroxy-17-methylmorphinan-6-one, is an opioid analgesic used for the treatment of pain.
  • Major metabolites of oxymorphone include oxymorphone-3-glucuronide and 6-hydroxy-oxymorphone.
  • Hydrocodone which is also known as 4,5a-epoxy-3-methoxy-17-methylmorphinan-6-one, is an opioid analgesic used for the treatment of pain.
  • Major metabolites of hydrocodone include norhydrocodone and hydromorphone.
  • Hydromorphone which is also known as 4,5- ⁇ -epoxy-3-hydroxy-17-methyl morphinan-6-one, is an opioid analgesic.
  • Major metabolites of hydromorphone include hydromorphone-3-glucuronide, hydromorphone-3-glucoside and dihydroisomorphine-6-glucuronide.
  • Codeine which is also known as a (5 ⁇ ,6 ⁇ )-7,8-didehydro-4,5-epoxy-3-methoxy-17-methylmorphinan-6-ol, is an opioid used for its analgesic, antitussive, antidiarrheal, antihypertensive, anxiolytic, antidepressant, sedative and hypnotic properties.
  • Major metabolites of codeine include codeine-6-glucuronide (C6G), norcodeine, hydrocodone, morphine, morphine-3-glucuronide, morphine-6-glucuronide, and normorphine.
  • Central nervous stimulants are often used to increase mental alertness, and they can results in feelings of exhilaration and energy.
  • Examples of such drugs include amphetamines such as methylphenidate, dextroamphetamine, and lisdexamfetamine.
  • Methylphenidate which is also known as methyl phenyl(piperidin-2-yl)acetate, is a drug often used for treatment of narcolepsy, attention-deficit/hyperactivity disorder, and depression.
  • Major metabolites of methylphenidate include but are not limited to ethylphenidate, ritalinic acid ( ⁇ -phenyl-2-piperidine acetic acid), hydroxymethylphenidate, and hydroxyritalinic acid.
  • Dextroamphetamine which is also known as (2S)-1-phenylpropan-2-amine, is a drug used for treatment of narcolepsy, attention-deficit/hyperactivity disorder, and depression.
  • Major metabolites of dextroamphetamine include but are not limited to 4-hydroxyamphetamine, benzoic acid, phenylacetone, hippuric acid, 4-hydroxynorephedrine, and norephedrine.
  • Lisdexamfetamine also known as lisdexamfetamine, is another stimulant. It is a prodrug of phenethylamine and amphetamines such as dextroamphetamine.
  • Benzodiazepines are commonly used to treat anxiety. Examples of benzodiazepines include, but are not limited to alprazolam, lorazepam, and diazepam.
  • Alprazolam which is also known as 8-chloro-1-methyl-6-phenyl-4H-[1,2,4]triazolo[4,3-a][1,4]benzodiazepine, is a short acting anxiolytic.
  • Major metabolites of alprazolam include, but are not limited to 4-hydroxyalprazolam and ⁇ -hydroxyalprazolam.
  • Lorazepam which is also known as (RS)-7-Chloro-5-(2-chlorophenyl)-3-hydroxy-1,3-dihydro-2H-1,4-benzodiazepin-2-one, is an anxiolytic agent having intermediate duration of action.
  • Major metabolites of lorazepam include, but are not limited to, 3-O-phenolic glucuronide and lorazepam glucuronide.
  • Diazepam which is also known as 7-chloro-1,3-dihydro-1-methyl-5-phenyl-1,4-benzodiazepin-2(3H)-one, is a commonly used anxiolytic.
  • Major metabolites of diazepam include, but are not limited to desmethyldiazepam, esmethyldiazepam, oxazepam, and temazepam.
  • examples of such compositions include but are not limited to ROXICODONE® (oxycodone tablets), OXYCONTIN® (oxycodone tablets), DILAUDID® (hydromorphone tablets), OPANA® and OPANA ER® (oxymorphone tablets), MS CONTIN® (morphine tablets), CONCERTA®, METHYLIN®, RITALIN®, RITALIN LA®, and EQUASYM KL® (methylphenidate tablets and capsules), FOCALIN® (dexmethylphenidate capsules), ADDERALL®, DEXEDRINE®, and DEXTROSTAT® (dextroamphetamine tablets and capsules), VYVANSE® (lisdexamfetamine capsules), ATIVAN® (lorazepam), XANAX® (alprazolam), and VALIUM® (d
  • a sense of euphoria or “high” can be experienced with high serum concentrations of these drugs. Individuals seeking to abuse these drugs will often tamper with oral dosage forms containing the drugs to achieve this “high.” For example, a large amount of tablets can be placed in a liquid to form a solution, and abusers either consume the liquid or more often filter and inject the solution. These tablets can also be crushed into a powder or small particle sizes and snorted intranasally.
  • Nasal insufflation which is another term for the inhalation of substances through the nose, is a common and harmful practice among abusers. Long-term practice of nasal insufflation can result in permanent damage to nasal tissue and increased incidence of toxicity and overdose. There is a need in the art for pharmaceutical compositions which minimize the ability for abuse, and when administered properly, provide an adequate and effective amount of drug.
  • the present invention addresses the need for an orally administrable drug product which, compared to conventional formulations, decreases the ability of an individual to achieve a “high” or euphoria effect through injection or insufflation.
  • the present invention provides an oral pharmaceutical composition in unit dosage form comprising a drug, a pH-dependent agent, and a pH-independent agent, wherein about 60% or more of the total amount of drug in the pharmaceutical composition is released after 60 minutes under the following dissolution conditions: 0.1 N HCl, 500 mL, USP Apparatus 2 (paddle), 50 rpm, 37° C.; and wherein about 25% or less of the total amount of drug in the pharmaceutical composition is released after 60 minutes under the following dissolution conditions: DI water, 500 mL, USP Apparatus 2 (Paddle), 50 rpm, 37° C.
  • the present invention also provides an oral pharmaceutical composition in unit dosage form comprising a drug, a pH-dependent agent, and a pH-independent agent, wherein about 50% or more of the total amount of drug in the pharmaceutical composition is released after 8 hours under the following dissolution conditions: 0.1 N HCl, 500 mL, USP Apparatus 2 (paddle), 50 rpm, 37° C.; and wherein about 25% or less of the total amount of drug in the pharmaceutical composition is released after 60 minutes under the following dissolution conditions: DI water, 500 mL, USP Apparatus 2 (Paddle), 50 rpm, 37° C.
  • the present invention also provides an orally administrable pharmaceutical composition comprising a drug, wherein the composition is configured such that when the pharmaceutical composition is administered intranasally in physically compromised form to a subject, the area under the curve (AUC) of drug after a period of time is less than 200% of the AUC of the drug achieved after oral administration of an intact form of the pharmaceutical composition after the same period of time.
  • AUC area under the curve
  • the present invention provides an orally administrable pharmaceutical composition comprising a drug, wherein the composition is configured such that when the pharmaceutical composition is administered intranasally in physically compromised form to a subject, the area under the curve (AUC) of a major metabolite of the drug after a period of time is at least 15% of the AUC of the major metabolite achieved after oral administration of an intact form of the pharmaceutical composition after the same period of time.
  • AUC area under the curve
  • the present invention also provides an orally administrable pharmaceutical composition comprising a drug, wherein the composition is configured such that when the pharmaceutical composition is administered intranasally in physically compromised form to a subject, the ratio of the area under the curve (AUC) of the drug to the AUC of a major metabolite of the drug (drug:major metabolite) achieved after a period of time is less than 25 times the ratio of the AUC of the drug to the AUC of the major metabolite (drug:major metabolite) achieved after the same period of time after oral administration of the pharmaceutical composition in an intact form.
  • AUC area under the curve
  • the present invention also provides an orally administrable pharmaceutical composition comprising a drug, wherein the composition is configured such that when the pharmaceutical composition is administered intranasally in physically compromised form to a subject, the sum of the area under the curve (AUC) of the drug and the AUC of a major metabolite of the drug after a period of time is less than the sum of the AUC of the drug and the AUC of the major metabolite achieved after the same period of time after oral administration of the pharmaceutical composition in an intact form.
  • AUC area under the curve
  • the present invention also provides an orally administrable pharmaceutical composition comprising a drug, wherein the composition is configured such that when the pharmaceutical composition is administered intranasally in physically compromised form to a subject, the ratio of the area under the curve (AUC) of the drug to the AUC of a major metabolite of the drug (drug:major metabolite) achieved after a period of time is about 10 or less.
  • AUC area under the curve
  • the present invention also provides a plurality of particles having a particle size distribution (D50) of about 100 ⁇ m to about 1000 ⁇ m, wherein the particles each comprise a drug and one or more pharmaceutically acceptable excipients and wherein the particles are configured such that the amount of drug released from the plurality of particles is no greater than 500% of the amount of drug released from an intact unit dosage form comprising the same amount (w/w) as the plurality of particles, under the following identical conditions: 30 mL of ethanol, 25° C., agitated at 100 rpm for a period of time.
  • D50 particle size distribution
  • the present invention also provides a plurality of particles having a particle size distribution (D50) of about 100 ⁇ m to about 1000 ⁇ m, wherein the particles each comprise a drug and one or more pharmaceutically acceptable excipients and wherein the particles are configured such that the rate of drug released from the plurality of particles is no greater than 500% of the rate of drug released from an intact unit dosage form comprising the same amount (w/w) as the plurality of particles, under the following identical conditions: 30 mL of ethanol, 25° C., agitated at 100 rpm for a period of time.
  • D50 particle size distribution
  • the present invention also provides a plurality of particles comprising: an active layer comprising a drug and a first polymer, and a barrier layer comprising a second polymer, wherein the active layer and barrier layer are bonded, and wherein the particles are configured such that the amount of drug released from the plurality of particles is no greater than 500% of the amount of drug released an intact unit dosage form comprising the same amount (w/w) as the plurality of particles, under the following identical conditions: 30 mL of ethanol, 25° C., agitated at 100 rpm for a period of time.
  • the present invention also provides a plurality of particles comprising: an active layer comprising a drug and a first polymer, and a barrier layer comprising a second polymer, wherein the active layer and barrier layer are bonded, and wherein the particles are configured such that the rate of drug released from the plurality of particles is no greater than 500% of the rate of drug released from an intact unit dosage form comprising the same amount (w/w) as the plurality of particles, under the following identical conditions: 30 mL of ethanol, 25° C., agitated at 100 rpm for a period of time.
  • the orally administrable compositions comprise two or more of the above features.
  • the present invention also provides a method of treating a condition, comprising administering to a patient in need thereof a pharmaceutical composition of the invention.
  • the present invention also provides a method of reducing the intensity, frequency and/or quality of euphoria, and a method of decreasing the rate at which euphoria occurs associated with administration of the drug, wherein the method comprises administration of a pharmaceutical composition of the present invention.
  • the present invention also provides a method of reducing the potential of abuse in a subject taking an opioid or stimulant-containing composition.
  • the present invention also provides a method of making such oral pharmaceutical compositions and a method of treating a medical condition comprising administering to a subject in need thereof the oral pharmaceutical composition of the present invention.
  • FIG. 1 describes the results of the experiment described in Example 4.
  • the present invention provides an abuse deterrent oral pharmaceutical composition in unit dosage form which, when administered orally, can provide a therapeutic amount of a drug to a subject to accomplish a pharmaceutical effect, such as pain relief, while minimizing the ability of a potential abuser to experience a “high” through improper administration of the composition, such as injection or insufflation.
  • the present invention provides for pharmaceutical compositions, which when administered orally as directed, will provide a therapeutically effective amount of a drug to a subject within the intended time when the pharmaceutical composition is in an acidic pH. However, when the surrounding environment of the oral pharmaceutical composition is at a neutral or alkaline pH, such as if the composition is placed in a water or basic liquid medium, then the release of the drug from the dosage form may be retarded or reduced.
  • the present invention provides immediate-release and extended-release formulations.
  • the pharmaceutical composition of the invention can comprise either or both extended release formulations, with a typical in vivo or in vitro slow release of drug over a period of about 6 to about 24 hours, preferably at least 80% of the drug released at about 6 to about 24 hours, as well as conventional immediate release formulations, preferably with a release of at least 80%, more preferably at least 90% and most preferably at least 95%, of the drug in one hour, designed for oral administration.
  • the present invention provides an oral pharmaceutical composition in unit dosage form comprising a drug, a pH-dependent agent, and a pH-independent agent, wherein about 60% or more of the total amount of drug in the pharmaceutical composition is released after 60 minutes under the following dissolution conditions: 0.1 N HCl, 500 mL, USP Apparatus 2 (paddle), 50 rpm, 37° C.; and wherein about 25% or less of the total amount of drug in the pharmaceutical composition is released after 60 minutes under the following dissolution conditions: DI water, 500 mL, USP Apparatus 2 (Paddle), 50 rpm, 37° C.
  • the pharmaceutical composition when the pharmaceutical composition is placed in the hydrochloric acid medium, about 60% or more, preferably about 70% or more, preferably about 80% or more, more preferably about 90% or more of the total amount of drug in the pharmaceutical composition is released after 60 minutes. In some embodiments, when the pharmaceutical composition is placed in the deionized water medium, about 25% or less, preferably about 15% or less, and more preferably about 10% or less of the total amount of drug in the pharmaceutical composition is released after 60 minutes.
  • the present invention also provides an oral pharmaceutical composition in unit dosage form comprising a drug, a pH-dependent agent, and a pH-independent agent, wherein no more than 50% of the total amount of drug in the pharmaceutical composition is released within 1 hour and about 50% or more of the total amount of drug in the pharmaceutical composition is released after 8 hours under the following dissolution conditions: 0.1 N HCl, 500 mL, USP Apparatus 2 (paddle), 50 rpm, 37° C.; and wherein about 25% or less of the total amount of drug in the pharmaceutical composition is released after 60 minutes under the following dissolution conditions: DI water, 500 mL, USP Apparatus 2 (Paddle), 50 rpm, 37° C.
  • the pharmaceutical composition when the pharmaceutical composition is placed in the hydrochloric acid medium, about 60% or more, preferably about 70% or more, more preferably about 80% or more of the total amount of drug in the pharmaceutical composition is released after 8 hours. In some embodiments, when the pharmaceutical composition is placed in the deionized water medium, about 25% or less, preferably about 15% or less, and more preferably about 10% or less of the total amount of drug in the pharmaceutical composition is released after 60 minutes.
  • the combination of the pH-dependent agent and pH-independent agent may contribute to the abuse deterrent aspect of the pharmaceutical composition.
  • the pH-dependent agent and pH-independent agent may contribute to inhibiting the release of the drug from the pharmaceutical composition.
  • the pharmaceutical composition when the pharmaceutical composition is placed in an acidic medium in vivo or in vitro, such as below a pH of about 6, more preferably about 5 or below, even more preferably about 4 or below, and most preferably about 3.5 or below, the pharmaceutical composition releases about 60% or more of the total amount of drug in the composition after a time period of about 60 minutes for immediate release formulations and about 8 hours for extended release formulations.
  • about 75% or more, more preferably about 90% or more of the total amount of drug in the pharmaceutical composition is released from the pharmaceutical composition after a time period of about 60 minutes for immediate release formulations and about 8 hours for extended release formulations. In some embodiments, these amounts are released after 30 minutes for immediate release formulations.
  • the release of the drug from the pharmaceutical composition may be affected. The release of the drug is considered to be affected, for example, if the amount and/or rate of release of drug is reduced.
  • the pharmaceutical composition when the pharmaceutical composition is placed in a medium having a pH of about 6 or higher, more preferably about 6.5 or higher, and most preferably about 7 or higher, the pharmaceutical composition releases about 25% or less, more preferably about 15% or less, and most preferably about 10% or less of the total amount of drug in the composition after 60 minutes of placement in the medium.
  • the medium is deionized water.
  • the medium is an alkaline medium.
  • the amount and/or rate of release of the drug from the pharmaceutical composition in 60 minutes may be reduced by about 10% or more, preferably about 25% or more, more preferably about 50% or more, and most preferably about 75% or more, compared to the amount and/or rate of release after placement in a medium having a pH below about 5, preferably below about 4.
  • placement of the pharmaceutical composition in a medium of pH of about 6 or higher, preferably between 6.5 and 7.5, may result in at least 90% reduction in the amount and/or rate of release of drug from the pharmaceutical composition in 60 minutes, compared to the amount and/or rate of release after placement in a medium having a pH below about 5, preferably below about 4.
  • the “medium” can refer to any surrounding environment, whether in vivo or in vitro, e.g. gastric fluid or any liquid, such as a solvent or an aqueous solution or suspension.
  • the present invention provides an oral pharmaceutical composition in unit dosage form comprising a drug, a pH-dependent agent, and a pH-independent agent.
  • unit dosage form refers to intact (i.e., not physically compromised) physically discrete units suitable as unitary dosages for administration to a subject.
  • unit dosage forms include, but are no limited to tablets, capsules, microtablets, granules, pellets, lollipops, and lozenges.
  • the unit dosage form comprises a tablet.
  • the pharmaceutical composition may be formulated for immediate release or extended release characteristics.
  • extended release is used to refer to a composition which is formulated to provide for the gradual release of an drug over an extended period of time, preferably over 2 to 48 hours, more preferably over 4 to 36 hours, and most preferably over 6 to 24 hours.
  • extended release includes controlled release and delayed release and may optionally contain an immediate release component.
  • an extended release portion preferably ⁇ 25%, more preferably ⁇ 20%, of the drug is released in the first hour from the composition; preferably 15-50%, more preferably 20-45%, of the drug is released in the first two (2) hours from the composition; preferably 40-80%, more preferably 45-75%, of the drug is released in the first four (4) hours from the composition; and preferably >75%, more preferably >80%, of the drug is released after eight (8) hours from the composition.
  • a 5% to about 25% of the drug is released after 1 hour, from about 40% to about 75% of the drug is released after 8 hours, and not less than 80% is released after 18 hours.
  • the pharmaceutical composition is formulated for immediate release.
  • immediate release is used to refer to a pharmaceutical composition which is formulated to release about 80% or more of an drug after 4 hours, more preferably after 2 hours, and most preferably after 1 hour after oral administration.
  • the pharmaceutical composition is formulated to release about 80% or more, more preferably about 90% or more, even more preferably about 95% of the drug in the pharmaceutical composition after about 1 hour after oral administration of the unit dosage form (for example, after swallowing the tablet or capsule or other dosage form).
  • pH-dependent agent refers to a component which is affected by the pH of the surrounding environment.
  • the pH-dependent agent may be a compound, such as a polymer, whose characteristics, such as chemical and/or physical properties, vary according to the pH of the surrounding environment.
  • the surrounding environment could comprise any type of liquid medium, such as gastric fluid.
  • the surrounding liquid may comprise gastric fluid.
  • the surrounding liquid may be an in vitro bath, such as water, an acidic or an alkaline solution.
  • the pH-dependent agent is affected by (i.e., dissolves when exposed to) a decrease in pH.
  • the pH-dependent agent is affected when the pH is below about 6, preferably below 5, more preferably below 4, even more preferably below 3.
  • the characteristics of the pH-dependent agent may be affected to a greater degree at different pHs.
  • the pH-dependent agent's physical or chemical characteristics may be affected to a greater degree at a pH of 4 or lower, compared to at a pH of 5.
  • the pH-dependent agent may comprise a compound such as a pharmaceutical excipient.
  • the pH-dependent agent comprises a pH-dependent polymer.
  • pH-dependent polymers include, but are not limited to certain methacrylate-based polymers, such as cationic polymers with a dimethylaminoethyl ammonium group. These polymers are marketed under trade names such as EUDRAGIT® E 100, and EUDRAGIT® E PO.
  • the pH-dependent polymer comprises EUDRAGIT® E100, or poly(butyl methacrylate-co-(2-demethylaminoeethyl) methacrylate-co-methyl methacrylate), 1:2:1.
  • EUDRAGIT® E100 is a cationic polymer with dimethylaminoethyl methacrylate as a functional group (CAS Registry No. 24938-16-7).
  • the “pH-independent agent” refers to a component whose characteristics do not generally vary according to the pH of the surrounding environment.
  • the pH-independent agent may be a compound, such as a polymer, whose characteristics, such as chemical and/or physical properties, do not vary significantly with changes in the pH of the surrounding environment.
  • the pH-independent agent may comprise a compound such as a pharmaceutical excipient.
  • the pH-independent agent comprises a pH-independent polymer.
  • pH-independent agents include cellulose-type agents, including but not limited to hydroxyethyl cellulose polymers, ethylcellulose polymers, methylcellulose polymers, and hydroxypropyl methylcellulose polymers; and certain methacrylate-based polymers, including but not limited to methacrylate/acrylate copolymers with trimethyl-ammonioethyl-amethacylate as a functional group, and neutral polymers of methacrylate/acrylates.
  • Cellulose-type agents are marketed under trade names such as ETHOCEL® and METHOCEL®, which include a number of subtypes based on physical/chemical properties.
  • pH-independent methacrylate-based polymers examples include those marketed under trade names such as EUDRAGIT® RL 30D, EUDRAGIT® RL PO, EUDRAGIT® RL 100, EUDRAGIT® RL 12, 5, EUDRAGIT® RS 30D, EUDRAGIT® RS PO, EUDRAGIT® RS 100, EUDRAGIT® RS 12,5, EUDRAGIT® NE 30D, EUDRAGIT® NE 40D, and EUDRAGIT® NM 30D.
  • the pH-independent agent comprises an ethylcellulose polymer, such as those marketed under the trade name ETHOCEL®.
  • the pH-independent agent comprises ETHOCEL® 45, which is an ethylcellulose having a viscosity of about 41-49.
  • the pharmaceutical composition may comprise a portion, part, or section which comprises both the pH-dependent agent and pH-independent agent.
  • the composition may comprise a layer or coating which comprises both the pH-dependent agent and the pH-independent agent.
  • the pH-dependent agent and pH-independent agent may each be present in separate parts or sections (such as, separate layers) of the pharmaceutical composition.
  • the multiple sections containing pH-dependent agent may be distributed within a section comprising the pH-independent agent, or vice versa.
  • the composition may comprise the drug in a portion, part, or section of the pharmaceutical composition which is separate from the part(s) or section(s) of the pharmaceutical composition which comprises the pH-dependent agent and the pH-independent agent.
  • the composition may comprise the drug in an inner portion, and the pH-dependent agent and pH-independent agent in one or more outer portions.
  • the pH-dependent agent and pH-independent agent may be comprised in one or more layers or coatings which cover the portion, part, or section of the pharmaceutical composition which comprises the drug (for example, a core or layer containing the drug).
  • the layer or coating may partially or substantially cover the drug-containing portion, part, or section of the pharmaceutical composition.
  • substantially cover means that preferably about 70% or more, more preferably about 80% or more, even more preferably about 90% or more, and most preferably about 95% or more of the part of the composition comprising the drug is covered. In some embodiments, 100% coverage is suitable.
  • the drug-containing portion, part, or section may be in any form.
  • the drug-containing portion, part, or section may be a tablet core or a capsule, and the pH-dependent agent and pH-independent agent may be comprised in a coating which partially or substantially covers the tablet core or capsule.
  • the active-ingredient portion, part, or section may comprise the pharmaceutical composition disclosed in U.S. Pat. No. 7,955,619, which is incorporated by reference in its entirety, and the pH-dependent agent and pH-independent agent may be comprised in one or more coatings.
  • the pharmaceutical may comprise a matrix comprising the pH-dependent agent and the pH-independent agent, and the drug is distributed within the matrix.
  • the release of the drug may be affected by a reduction of the dissolution of the coating or layer.
  • the coating or layer may dissolve substantially and then a substantial amount of the drug is released from the pharmaceutical composition.
  • the dissolution of the coating or layer may be reduced, preferably significantly, and/or the coating or layer may remain partially or substantially intact, and the total amount of the drug is not released from the pharmaceutical composition.
  • the pH-dependent agent and pH-independent agents are comprised in a matrix in which the drug is distributed
  • a similar effect may be achieved.
  • the matrix may release the total amount of drug from pharmaceutical composition.
  • another pH for example, at about pH 6 or above
  • the matrix may remain substantially intact or otherwise not release the total amount of the drug from the pharmaceutical composition.
  • the reduced amount and rate of release makes it difficult for subjects to abuse the drug by injection to attain a “high,” as in some cases, the pharmaceutical composition may be partially or substantially undissolved, and it is difficult to draw up a large amount of drug in a syringe.
  • the weight ratio of pH-dependent agent:pH-independent agent present in the composition is about 50:1 to 1:50, preferably 25:1 to 1:25, and more preferably 10:1 to 1:1.
  • the pH-dependent agent and pH-independent agent are comprised in the same portion, part, or section of the composition, such as in a layer or coating, and the weight ratio of pH-dependent agent:pH-independent agent is about 10:1 to 10:6, more preferably about 10:2 to 10:4, and most preferably about 10:3.
  • the composition comprises a cationic polymer with dimethyl-aminoethyl methacrylate as a functional group, preferably EUDRAGIT® E100 (a pH-dependent agent), and an ethylcellulose polymer, preferably ETHOCEL® 45 (a pH-independent agent), in a ratio of EUDRAGIT® E100:ETHOCEL® 45 of about 10:3.
  • EUDRAGIT® E100 a pH-dependent agent
  • ETHOCEL® 45 a pH-independent agent
  • drug includes any compound which has pharmacological or biological activity.
  • a drug may comprise an active pharmaceutical ingredient or a salt, ester, or derivative thereof.
  • the drug include, but are not limited to analgesics, anti-inflammatory agents, anti-helminthics, anti-arrhythmic agents, anti-asthma agents, anti-bacterial agents, anti-viral agents, anti-coagulants, anti-dementia agents, anti-depressants, anti-diabetics, anti-epileptics, anti-fungal agents, anti-gout agents, anti-hypertensive agents, anti-malarials, anti-migraine agents, anti-muscarinic agents, anti-neoplastic agents, immunosuppressants, anti-protozoal agents, anti-thyroid agents, anti-tussives, anxiolytics, sedatives, hypnotics, neuroleptics, neuroprotective agents, ⁇ -blockers, cardic inotropic agents, cell adhema, cell
  • the drug is one that is often abused, such as a central nervous system stimulant or depressant.
  • central nervous system stimulants include, but are not limited to, amphetamines and agents such as cocaine.
  • central nervous depressants include, but are not limited to but are not limited to opioids, barbiturates, benzodiazepines, and other anxiety and sleep medications.
  • Stimulants increase heart rate, blood pressure and metabolism, sometimes providing feelings of exhilaration and energy and increased mental alertness.
  • Amphetamines such as methylphenidate (sometimes marketed under the tradename RITALIN®) and dextroamphetamine (sometimes marketed under the tradenames ADDERALL® and DEXEDRINE®) are often prescribed for the treatment of narcolepsy, attention-deficit/hyperactivity disorder, and depression that has not responded to other treatments. They also may be used for short-term treatment of obesity. Individuals may become addicted to the sense of well-being and enhanced energy that stimulants can generate. Taking high doses of stimulants repeatedly over a short time, however, can lead to feelings of hostility or paranoia. Additionally, taking high doses of stimulants may result in dangerously high body temperatures and an irregular heartbeat.
  • opioids include, but are not limited to the following: alfentanil, allylprodine, alphaprodine, anileridine, benzylmorphine, bezitramide, buprenorphine, butorphanol, clonitazene, codeine, desomorphine, dextromoramide, dezocine, diampromide, diamorphone, dihydrocodeine, dihydromorphine, dimenoxadol, dimepheptanol, dimethylthiambutene, dioxaphetyl butyrate, dipipanone, eptazocine, ethoheptazine, ethylmethylthiambutene, ethylmorphine, etonitazene, hydrocodone, hydromorphone, hydroxypethidine, isomethadone, ketobemidone, levorphanol, levophenacylmorphan, lofentanil, meperidine, mepta
  • opioids include fentanyl, sufentanil, carfentanil, lofentanil, alfentanil, hydromorphone, oxycodone, morphine, hydroxycodone, propoxyphene, pentazocine, methadone, tilidine, butorphanol, buprenorphine, levorphanol, codeine, oxymorphone, meperidine, and dihydrocodeinone. More preferred opioids include oxycodone, hydrocodone, codeine, morphine, oxymorphone and hydromorphone, and pharmaceutically acceptable salts and esters thereof.
  • barbiturates include, but are not limited to mephobarbital (which is sometimes marketed under the tradename MEBARAL®) and pentobarbital sodium (which is sometimes marketed under the tradename NEMBUTAL®). Barbiturates are often prescribed to treat anxiety, tension, and sleep disorders.
  • benzodiazepines and benzodiazepine derivatives include, but are not limited to diazepam (sometimes marketed under the tradename VALIUM®), alprazolam (sometimes marketed under the tradename XANAX®), triazolam (HALCION®), and estazolam (PROSOM®).
  • Benzodiazepines are often prescribed to treat anxiety, acute stress reactions, and panic attacks.
  • CNS depressant is zaleplon, which is sometimes marked under the tradename SONATA®.
  • compositions comprising one or more drugs.
  • the compositions comprise one or more opioids.
  • the present invention also provides for compositions comprising one or more opioids, wherein the compositions do not comprise an opioid antagonist or any other non-opioid agonist.
  • the present invention provides for compositions comprising one or more drugs but not comprising any adverse agent.
  • Adverse agents refer for agents which reduce or eliminate one or more pharmacological effects of the drug or agents which cause an undesired physiological reaction, such as emesis.
  • Adverse agents include, but are not limited to antagonists such as opioid antagonists, mucous membrane irritants, and emetics.
  • the present invention provides compositions which do not comprise naloxone or natrexone.
  • Preferred embodiments of the invention include an drug in the amounts as follows: oxycodone or a pharmaceutically acceptable salt thereof, which is present in an amount of about 5 mg to about 400 mg; morphine or a pharmaceutically acceptable salt thereof, which is present in an amount of about 15 mg to about 800 mg; hydromorphone or a pharmaceutically acceptable salt thereof, which is present in an amount of about 1 mg to about 64 mg; hydrocodone or a pharmaceutically acceptable salt thereof, which is present in an amount of about 5 mg to about 400 mg; and oxymorphone or a pharmaceutically acceptable salt thereof, which is present in an amount of about 4 mg to about 80 mg.
  • compositions of the present invention comprise morphine or a pharmaceutically acceptable salt thereof.
  • Salts of morphine include, but are not limited to sulfate, sulfate pentahydrate, hydrochloride, hydrochloride trihydrate, meconate, valerate, acetate, citrate, bitartrate, stearate, phthalate, hydrobromide, hydroiodide, mucate, nitrate, salicylate, phenylpropionate, phosphate, methyliodide, isobutyrate, hypophosphite, tannate, tartrate, methylbromide, methylsulfonate, and those disclosed in EP 0137600, which is incorporated herein by reference.
  • the composition comprises morphine sulfate or morphine sulfate pentahydrate.
  • compositions of the present invention comprise oxycodone or a pharmaceutically acceptable salt thereof.
  • Salts of oxycodone include, but are not limited to hydrochloride, hydrobromide, hydroiodide, sulfate, bisulfate, nitrate, citrate, tartrate, bitartrate, phosphate, malate, maleate, fumarate, succinate, acetate, terephthalate, and pamoate.
  • the composition comprises oxycodone hydrochloride.
  • compositions of the present invention comprise oxymorphone or a pharmaceutically acceptable salt thereof.
  • oxymorphone include, but are not limited to hydrochloride, sulfate, nitrate, phosphate, hydrobromide, malate, maleate, ascorbate, citrate, tartarate, pamoate, laurate, stearate, palmitate, oleate, myristate, lauryl sulfate, linoleate, and linolenate.
  • the composition comprises oxymorphone hydrochloride.
  • compositions of the present invention comprise hydrocodone or a pharmaceutically acceptable salt thereof.
  • Salts of hydrocodone include, but are not limited to, bitartrate, bitartrate hydrate, hydrochloride, p-toluenesulfonate, phosphate, thiosemicarbazone, sulfate, trifluoroacetate, hemipentahydrate, pentafluoropropionate, p-nitrophenylhydrazone, o-methyloxime, semicarbazone, hydrobromide, mucate, oleate, phosphate dibasic, phosphate monobasic, acetate trihydrate, bis(heptafluorobutyrate), bis(methylcarbamate), bis(pentafluoropropionate), bis(pyridine carboxylate), bis(trifluoroacetate), chlorhydrate, and sulfate pentahydrate.
  • the compositions of the present invention comprise hydrocodone bitartrate.
  • compositions of the present invention comprise hydromorphone or a pharmaceutically acceptable salt thereof.
  • Salts of hydromorphone include, but are not limited to, sulfate, hydrochloride, sodium chloride, trifluoracetate, thiosemicarbazone hydrochloride, pentafluoropropionate, p-nitrophenyl-hydrozone, hydrazine, hydrobromide, mucate, methylbromide, oleate, n-oxide, acetate, phosphate dibasic, phosphate monobasic, acetate trihydrate, bis(heptafluorobutyrate), bis(methylcarbamate), (bis-pentafluoropropionate), bis(pyridine-3-carboxylate), bis(trifluoroacetate), bitartrate, chlorohydrate, and sulfate pentahydrate.
  • the compositions of the present invention comprise hydromorphone hydrochloride.
  • the pharmaceutical composition is “physically compromised” when it is in a form other than an intact form.
  • a pharmaceutical composition is physically compromised when the physical integrity of the pharmaceutical composition or dosage form is compromised. This can be achieved by various means such as by chopping, grinding, crushing, or placing into solvents, such as those containing alcohol (e.g., ethyl alcohol) and/or water. In preferred embodiments, the physically compromised composition is in a chopped, ground, or crushed form.
  • a pharmaceutical composition may be physically compromised in a number of ways, including but not limited to use of a pill crusher, a pill splitter, a mortar and pestle, a solid object such as a hammer or a spoon, a sharp object such as a razor, a grinder such as a coffee bean grinder, or a blender.
  • the average particle size of the physically compromised pharmaceutical composition is less than 6 mm, alternatively less than 5 mm, alternatively less than 4 mm, alternatively less than 3 mm, alternatively less than 2 mm, alternatively less than 1 mm, alternatively less than 0.5 mm, alternatively less than 0.25 mm.
  • the present invention provides orally administrable pharmaceutical compositions comprising a drug and optionally comprising a pH-dependent agent and pH-independent agent.
  • the orally administrable pharmaceutical compositions may optionally comprise a coating.
  • the area under the curve, or “AUC” refers to the area under the serum concentration curve, or the integral of the blood serum concentration of the drug substance over a period of time.
  • the AUC achieved after a period of time refers to the AUC calculated after an amount of time after administration.
  • the period of time is about 30 minutes to about 24 hours after administration.
  • the period of time is selected from the group consisting of about 30 minutes, about 1 hour, about 2 hours, about 4 hours, about 8 hours, about 12 hours, and about 24 hours and the AUC is calculated at any of these time points after administration.
  • the period of time is selected from the group consisting of: about 0.5 hours, 1 hour, and 2 hours.
  • the AUC may refer to the “AUC 0-t ”.
  • AUC 0-t refers to the AUC from time zero (“0”) to “t” wherein “t” is the last time point with measurable concentration for individual formulation.
  • the sum of the AUC of the drug and the AUC of the major metabolite refers to the total amount of AUC of both the drug and the major metabolite, calculated at the same time point.
  • the present invention also provides an orally administrable pharmaceutical composition comprising a drug, wherein the composition is configured such that when the pharmaceutical composition is administered intranasally in physically compromised form to a subject, the area under the curve (AUC) of drug after a period of time is less than 200% of the AUC of the drug achieved after oral administration of an intact form of the pharmaceutical composition after the same period of time.
  • the AUC of the drug after a period of time is less than 175%, alternatively less than 150%, or alternatively less than 125% of the AUC of the drug achieved after oral administration of an intact form of the pharmaceutical composition after the same period of time.
  • the present invention provides an orally administrable pharmaceutical composition comprising a drug, wherein the composition is configured such that when the pharmaceutical composition is administered intranasally in physically compromised form to a subject, the area under the curve (AUC) of a major metabolite of the drug after a period of time is at least 15% of the AUC of the major metabolite achieved after oral administration of an intact form of the pharmaceutical composition after the same period of time.
  • AUC area under the curve
  • the AUC of a major metabolite of the drug after a period of time is at least 20%, alternatively at least 25%, alternatively at least 30%, alternatively at least 35%, alternatively at least 40%, alternatively at least 45% of the AUC of the major metabolite achieved after oral administration of an intact form of the pharmaceutical composition after the same period of time.
  • a metabolite is a compound derived from the parent drug through Phase I and/or Phase II metabolic pathways.
  • a major metabolite of a drug may refer to a metabolite which in the human plasma accounts for ⁇ 10% of the parent drug systemic exposure or administered dose.
  • the major metabolite may refer to active or inactive metabolites.
  • the major metabolite is selected from the group consisting of: morphine-3-glucuronide (M3G), morphine-6-glucuronide (M6G), hydromorphone, normorphine (NM) and minor metabolites such as morphine-3,6-diglucuronide, morphine-3-ethereal sulfate, normorphine-6-glucuronide, and normorphine-3-glucuronide.
  • M3G morphine-3-glucuronide
  • M6G morphine-6-glucuronide
  • hydromorphone normorphine
  • NM normorphine
  • minor metabolites such as morphine-3,6-diglucuronide, morphine-3-ethereal sulfate, normorphine-6-glucuronide, and normorphine-3-glucuronide.
  • the major metabolite is selected from the group consisting of: noroxycodone, ⁇ oxycodol, ⁇ oxycodol, oxymorphone, ⁇ oxymorphol, ⁇ oxymorphol, noroxymorphone, ⁇ noroxycodol, ⁇ noroxycodol, noroxymorphone, 14-hydroxydihydrocodeine, and 14-hydroxydihydromorphine.
  • the major metabolite is selected from the group consisting of: oxymorphone-3-glucuronide and 6-hydroxy-oxymorphone.
  • the major metabolite is selected from the group consisting of: hydromorphone-3-glucuronide, hydromorphone-3-glucoside and dihydroisomorphine-6-glucuronide.
  • the major metabolite is selected from the group consisting of: codeine-6-glucuronide (C6G), norcodeine, hydrocodone, morphine, morphine-3-glucuronide, morphine-6-glucuronide, and normorphine.
  • the major metabolite is selected from the group consisting of: ethylphenidate, ritalinic acid ( ⁇ -phenyl-2-piperidine acetic acid), hydroxymethylphenidate, and hydroxyritalinic acid.
  • the major metabolite is selected from the group consisting of: 4-hydroxyamphetamine, benzoic acid, phenylacetone, hippuric acid, 4-hydroxynorephedrine, and norephedrine.
  • the major metabolite is selected from the group consisting of: phenethylamine and dextroamphetamine.
  • the major metabolite is selected from the group consisting of 4-hydroxyalprazolam and ⁇ -hydroxyalprazolam.
  • the drug is lorazepam
  • the major metabolite is selected from the group consisting of: 3-O-phenolic glucuronide and lorazepam glucuronide.
  • the major metabolite is seleted from the group consisting of desmethyldiazepam, esmethyldiazepam, oxazepam, and temazepam.
  • the present invention also provides an orally administrable pharmaceutical composition comprising a drug, wherein the composition is configured such that when the pharmaceutical composition is administered intranasally in physically compromised form to a subject, the ratio of the area under the curve (AUC) of the drug to the AUC of a major metabolite of the drug (drug:major metabolite) achieved after a period of time is less than 25 times the ratio of the AUC of the drug to the AUC of the major metabolite (drug:major metabolite) achieved after the same period of time after oral administration of the pharmaceutical composition in an intact form.
  • AUC area under the curve
  • ratio of the AUC of the drug to the AUC of a major metabolite refers to the AUC of the drug, divided by the AUC of a major metabolite.
  • the ratio of the area under the curve (AUC) of the drug to the AUC of a major metabolite of the drug (drug:major metabolite) achieved after a period of time is less than 20 times, alternatively less than 10 times the ratio of the AUC of the drug to the AUC of the major metabolite (drug:major metabolite) achieved after the same period of time after oral administration of the pharmaceutical composition in an intact form.
  • the ratio of the area under the curve (AUC) of the drug to the AUC of a major metabolite of the drug (drug:major metabolite) achieved after a period of time is less than 20 times, alternatively less than 10 times, alternatively less than 8 times, alternatively less than 5 times, alternatively less than 3 times, the ratio of the AUC of the drug to the AUC of the major metabolite (drug:major metabolite) achieved after the same period of time after oral administration of the pharmaceutical composition in an intact form.
  • the ratio of the area under the curve (AUC) of the drug to the AUC of a major metabolite of the drug (drug:major metabolite) achieved after a period of time is about 1 to 10, alternatively about 2 to 8, alternatively about 4 to 7 times the ratio of the AUC of the drug to the AUC of the major metabolite (drug:major metabolite) achieved after the same period of time after oral administration of the pharmaceutical composition in an intact form.
  • the ratio of the area under the curve (AUC) of the drug to the AUC of a major metabolite of the drug (drug:major metabolite) achieved after a period of time is about 1 to 15, alternatively about 2 to 10, alternatively about 5 to 8 times the ratio of the AUC of the drug to the AUC of the major metabolite (drug:major metabolite) achieved after the same period of time after oral administration of the pharmaceutical composition in an intact form.
  • the ratio of the area under the curve (AUC) of the drug to the AUC of a major metabolite of the drug (drug:major metabolite) achieved after a period of time is about 1 to 10, alternatively about 2 to 8, alternatively about 3 to 6 times the ratio of the AUC of the drug to the AUC of the major metabolite (drug:major metabolite) achieved after the same period of time after oral administration of the pharmaceutical composition in an intact form.
  • the present invention also provides an orally administrable pharmaceutical composition comprising a drug, wherein the composition is configured such that when the pharmaceutical composition is administered intranasally in physically compromised form to a subject, the ratio of the area under the curve (AUC) of the drug to the AUC of a major metabolite of the drug (drug:major metabolite) achieved after a period of time is about 10 or less. In some embodiments, the ratio of the area under the curve (AUC) of the drug to the AUC of the major metabolite (drug:major metabolite) achieved after a period of time is about 8 or less, or alternatively about 6 or less.
  • the ratio of the area under the curve (AUC) of the drug to the AUC of the major metabolite (drug:major metabolite) achieved after a period of time is about 0.1 to about 4, alternatively about 0.2 to about 3, alternatively about 0.3 to about 1, or alternatively about 0.4 to about 0.5. In some embodiments wherein the period of time is about 0.5 hour, the ratio of the area under the curve (AUC) of the drug to the AUC of the major metabolite (drug:major metabolite) achieved after a period of time is about 1 to about 10, alternatively about 2 to about 8, or alternatively about 3 to about 6.
  • the ratio of the area under the curve (AUC) of the drug to the AUC of the major metabolite (drug:major metabolite) achieved after a period of time is about 1 to about 5, alternatively about 2 to about 4, or alternatively about 2 to about 3. In some embodiments wherein the period of time is about 2 hours, the ratio of the area under the curve (AUC) of the drug to the AUC of the major metabolite (drug:major metabolite) achieved after a period of time is about 0.5 to about 5, alternatively about 0.75 to about 3, or alternatively about 1 to about 2.
  • the present invention also provides an orally administrable pharmaceutical composition comprising a drug, wherein the composition is configured such that when the pharmaceutical composition is administered intranasally in physically compromised form to a subject, the sum of the area under the curve (AUC) of the drug and the AUC of a major metabolite of the drug after a period of time is less than the sum of the AUC of the drug and the AUC of the major metabolite achieved after the same period of time after oral administration of the pharmaceutical composition in an intact form.
  • AUC area under the curve
  • the sum of the area under the curve (AUC) of the drug and the AUC of a major metabolite of the drug after a period of time at least 10% lower, alternatively at least 20% lower, alternatively at least 25% lower, alternatively at least 30% lower, alternatively at least 35% lower, alternatively at least 40% lower, or alternatively at least 45% lower than the sum of the AUC of the drug and the AUC of the major metabolite achieved after the same period of time after oral administration of the pharmaceutical composition in an intact form.
  • the present invention also provides an orally administrable pharmaceutical composition comprising 60 mg of morphine or a salt thereof, wherein the composition is configured such that when the pharmaceutical composition is administered intranasally in physically compromised form to a subject, the sum of the area under the curve (AUC) of morphine and the AUC of a major metabolite, such as morphine-6-glucuronide (M6G), after a period of time is less than 900 ng ⁇ h/mL.
  • AUC area under the curve
  • M6G major metabolite
  • the sum of the AUC of morphine and the AUC of M6G is about 100 ng ⁇ h/mL to about 800 ng ⁇ h/mL, alternatively about 200 ng ⁇ h/mL to about 700 ng ⁇ h/mL, alternatively about 300 ng ⁇ h/mL to about 600 ng ⁇ h/mL, or alternatively about 500 ng ⁇ h/mL to about 600 ng ⁇ h/mL.
  • the sum of the AUC of morphine and the AUC of M6G is less than 50 ng ⁇ h/mL, alternatively about 0.5 ng ⁇ h/mL to about 25 ng ⁇ h/mL, alternatively about 1 ng ⁇ h/mL to about 10 ng ⁇ h/mL, or alternatively about 1 ng ⁇ h/mL to about 5 ng ⁇ h/mL.
  • the sum of the AUC of morphine and the AUC of M6G is less than 75 ng ⁇ h/mL, alternatively about 1 ng ⁇ h/mL to about 50 ng ⁇ h/mL, alternatively about 5 ng ⁇ h/mL to about 25 ng ⁇ h/mL, or alternatively about 10 ng ⁇ h/mL to about 20 ng ⁇ h/mL.
  • the sum of the AUC of morphine and the AUC of M6G is less than 250 ng ⁇ h/mL, alternatively about 5 ng ⁇ h/mL to about 150 ng ⁇ h/mL, alternatively about 25 ng ⁇ h/mL to about 100 ng ⁇ h/mL, or alternatively about 40 ng ⁇ h/mL to about 80 ng ⁇ h/mL.
  • the present invention also provides an orally administrable pharmaceutical composition comprising morphine or a salt thereof, wherein the composition is configured such that when the pharmaceutical composition is administered intranasally in physically compromised form to a subject, the sum of the area under the curve (AUC) of morphine and the AUC of a major metabolite, such as morphine-6-glucuronide (M6G), after a period of time is less than 20 ng ⁇ h/mL/mg (ng ⁇ h/mL per mg of morphine).
  • AUC area under the curve
  • M6G major metabolite
  • the composition comprises morphine and the AUC is the AUC 0-t
  • the sum of the AUC of morphine and the AUC of M6G is about 1 ng ⁇ h/mL/mg to about 18 ng ⁇ h/mL/mg, alternatively about 5 ng ⁇ h/mL/mg to about 15 ng ⁇ h/mL/mg, or alternatively about 8 ng ⁇ h/mL/mg to about 12 ng ⁇ h/mL/mg.
  • the sum of the AUC of morphine and the AUC of M6G is less than 0.5 ng ⁇ h/mL/mg, alternatively about 0.01 ng ⁇ h/mL/mg to about 0.3 ng ⁇ h/mL/mg, alternatively about 0.02 ng ⁇ h/mL/mg to about 0.1 ng ⁇ h/mL/mg, or alternatively about 0.03 ng ⁇ h/mL/mg to about 0.07 ng ⁇ h/mL/mg.
  • the sum of the AUC of morphine and the AUC of M6G is less than 1 ng ⁇ h/mL/mg, alternatively about 0.05 ng ⁇ h/mL/mg to about 0.75 ng ⁇ h/mL/mg, alternatively about 0.1 ng ⁇ h/mL/mg to about 0.5 ng ⁇ h/mL/mg, or alternatively about 0.15 ng ⁇ h/mL/mg to about 0.35 ng ⁇ h/mL/mg.
  • the sum of the AUC of morphine and the AUC of M6G is less than 5 ng ⁇ h/mL/mg, alternatively about 0.1 ng ⁇ h/mL/mg to about 2.5 ng ⁇ h/mL/mg, alternatively about 0.5 ng ⁇ h/mL/mg to about 2 ng ⁇ h/mL/mg, or alternatively about 0.75 ng ⁇ h/mL/mg to about 1.5 ng ⁇ h/mL/mg.
  • the present invention also provides an orally administrable pharmaceutical composition comprising 60 mg of morphine or a salt thereof, wherein the composition is configured such that when the pharmaceutical composition is administered intranasally in physically compromised form to a subject, the area under the curve (AUC) of the morphine after a period of time is less than 400 ng ⁇ h/mL.
  • the AUC of morphine is about 50 ng ⁇ h/mL to about 300 ng ⁇ h/mL, alternatively about 100 ng ⁇ h/mL to about 200 ng ⁇ h/mL, or alternatively about 125 ng ⁇ h/mL to about 175 ng ⁇ h/mL.
  • the AUC of morphine is less than 10 ng ⁇ h/mL, alternatively about 0.5 ng ⁇ h/mL to about 8 ng ⁇ h/mL, alternatively about 1 ng ⁇ h/mL to about 5 ng ⁇ h/mL, or alternatively about 2 ng ⁇ h/mL to about 3 ng ⁇ h/mL.
  • the AUC of morphine is less than 50 ng ⁇ h/mL, alternatively about 2.5 ng ⁇ h/mL to about 25 ng ⁇ h/mL, alternatively about 5 ng ⁇ h/mL to about 15 ng ⁇ h/mL, or alternatively about 8 ng ⁇ h/mL to about 12 ng ⁇ h/mL.
  • the AUC of morphine is less than 100 ng ⁇ h/mL, alternatively about 5 ng ⁇ h/mL to about 75 ng ⁇ h/mL, alternatively about 10 ng ⁇ h/mL to about 50 ng ⁇ h/mL, or alternatively about 25 ng ⁇ h/mL to about 35 ng ⁇ h/mL.
  • the present invention also provides an orally administrable pharmaceutical composition comprising morphine or a salt thereof, wherein the composition is configured such that when the pharmaceutical composition is administered intranasally in physically compromised form to a subject, the area under the curve (AUC) of morphine after a period of time is less than 10 ng ⁇ h/mL/mg (ng ⁇ h/mL per mg of morphine).
  • the AUC of morphine is about 1 ng ⁇ h/mL/mg to about 8 ng ⁇ h/mL/mg, alternatively about 2 ng ⁇ h/mL/mg to about 6 ng ⁇ h/mL/mg, or alternatively about 3 ng ⁇ h/mL/mg to about 4 ng ⁇ h/mL/mg.
  • the AUC of morphine is less than 0.5 ng ⁇ h/mL/mg, alternatively about 0.01 ng ⁇ h/mL/mg to about 0.2 ng ⁇ h/mL/mg, alternatively about 0.02 ng ⁇ h/mL/mg to about 0.1 ng ⁇ h/mL/mg, or alternatively about 0.03 ng ⁇ h/mL/mg to about 0.05 ng ⁇ h/mL/mg.
  • the AUC of morphine is less than 1 ng ⁇ h/mL/mg, alternatively about 0.05 ng ⁇ h/mL/mg to about 0.75 ng ⁇ h/mL/mg, alternatively about 0.1 ng ⁇ h/mL/mg to about 0.5 ng ⁇ h/mL/mg, or alternatively about 0.15 ng ⁇ h/mL/mg to about 0.25 ng ⁇ h/mL/mg.
  • the AUC of morphine is less than 2.5 ng ⁇ h/mL/mg, alternatively about 0.1 ng ⁇ h/mL/mg to about 2 ng ⁇ h/mL/mg, alternatively about 0.2 ng ⁇ h/mL/mg to about 1 ng ⁇ h/mL/mg, or alternatively about 0.3 ng ⁇ h/mL/mg to about 0.75 ng ⁇ h/mL/mg.
  • the present invention also provides an orally administrable pharmaceutical composition comprising 60 mg of morphine or a salt thereof, wherein the composition is configured such that when the pharmaceutical composition is administered intranasally in physically compromised form to a subject, the area under the curve (AUC) of a major metabolite such as morphine-6-glucuronide (M6G) after a period of time is at least 100 ng ⁇ h/mL.
  • AUC area under the curve
  • M6G morphine-6-glucuronide
  • the AUC of M6G is about 150 ng ⁇ h/mL to about 750 ng ⁇ h/mL, alternatively about 200 ng ⁇ h/mL to about 500 ng ⁇ h/mL, or alternatively about 300 ng ⁇ h/mL to about 400 ng ⁇ h/mL.
  • the AUC of M6G is at least about 0.1 ng ⁇ h/mL, alternatively about 0.2 ng ⁇ h/mL to about 5 ng ⁇ h/mL, alternatively about 0.3 ng ⁇ h/mL to about 1 ng ⁇ h/mL, or alternatively about 0.4 ng ⁇ h/mL to about 0.75 ng ⁇ h/mL.
  • the AUC of M6G is at least about 0.5 ng ⁇ h/mL, alternatively about 1 ng ⁇ h/mL to about 15 ng ⁇ h/mL, alternatively about 1.5 ng ⁇ h/mL to about 5 ng ⁇ h/mL, or alternatively about 0.4 ng ⁇ h/mL to about 0.75 ng ⁇ h/mL.
  • the AUC of M6G is at least about 5 ng ⁇ h/mL, alternatively about 10 ng ⁇ h/mL to about 75 ng ⁇ h/mL, alternatively about 15 ng ⁇ h/mL to about 50 ng ⁇ h/mL, or alternatively about 20 ng ⁇ h/mL to about 40 ng ⁇ h/mL.
  • the present invention also provides an orally administrable pharmaceutical composition comprising morphine or a salt thereof, wherein the composition is configured such that when the pharmaceutical composition is administered intranasally in physically compromised form to a subject, the area under the curve (AUC) of a major metabolite such as morphine-6-glucuronide (M6G) after a period of time is at least about 0.5 ng ⁇ h/mL/mg (ng ⁇ h/mL per mg of morphine).
  • AUC area under the curve
  • the AUC of M6G is about 1 ng ⁇ h/mL/mg to about 20 ng ⁇ h/mL/mg, alternatively about 2.5 ng ⁇ h/mL/mg to about 15 ng ⁇ h/mL/mg, or alternatively about 5 ng ⁇ h/mL/mg to about 10 ng ⁇ h/mL/mg.
  • the AUC of M6G is at least about 0.005 ng ⁇ h/mL/mg, alternatively about 0.006 ng ⁇ h/mL/mg to about 1 ng ⁇ h/mL/mg, alternatively about 0.008 ng ⁇ h/mL/mg to about 0.5 ng ⁇ h/mL/mg, or alternatively about 0.01 ng ⁇ h/mL/mg to about 0.25 ng ⁇ h/mL/mg.
  • the AUC of M6G is at least about 0.01 ng ⁇ h/mL/mg, alternatively about 0.02 ng ⁇ h/mL/mg to about 1 ng ⁇ h/mL/mg, alternatively about 0.03 ng ⁇ h/mL/mg to about 0.5 ng ⁇ h/mL/mg, or alternatively about 0.05 ng ⁇ h/mL/mg to about 0.1 ng ⁇ h/mL/mg.
  • the AUC of morphine is at least about 0.1 ng ⁇ h/mL/mg, alternatively about 0.2 ng ⁇ h/mL/mg to about 5 ng ⁇ h/mL/mg, alternatively about 0.25 ng ⁇ h/mL/mg to about 1 ng ⁇ h/mL/mg, or alternatively about 0.4 ng ⁇ h/mL/mg to about 0.75 ng ⁇ h/mL/mg.
  • the present invention further provides for a plurality of particles which may optionally comprise a pH-dependent agent and pH-independent agent and/or may optionally provide the above-described pharmacokinetic effects.
  • the present invention also provides a plurality of particles having a particle size distribution (D50) of about 100 ⁇ m to about 1000 ⁇ m, wherein the particles each comprise a drug and one or more pharmaceutically acceptable excipients and wherein the particles are configured such that the amount of drug released from the plurality of particles is no greater than 500% of the amount of drug released from an intact unit dosage form comprising the same amount (w/w) as the plurality of particles, under the following identical conditions: 30 mL of ethanol, 25° C., agitated at 100 rpm for a period of time.
  • D50 particle size distribution
  • the present invention also provides a plurality of particles having a particle size distribution (D50) of about 100 ⁇ m to about 1000 ⁇ m, wherein the particles each comprise a drug and one or more pharmaceutically acceptable excipients and wherein the particles are configured such that the rate of drug released from the plurality of particles is no greater than 500% of the rate of drug released from an intact unit dosage form comprising the same amount (w/w) as the plurality of particles, under the following identical conditions: 30 mL of ethanol, 25° C., agitated at 100 rpm for a period of time.
  • D50 particle size distribution
  • the present invention also provides a plurality of particles comprising: an active layer comprising a drug and a first polymer, and a barrier layer comprising a second polymer, wherein the active layer and barrier layer are bonded, and wherein the particles are configured such that the amount of drug released from the plurality of particles is no greater than 500% of the amount of drug released an intact unit dosage form comprising the same amount (w/w) as the plurality of particles, under the following identical conditions: 30 mL of ethanol, 25° C., agitated at 100 rpm for a period of time.
  • the present invention also provides a plurality of particles comprising: an active layer comprising a drug and a first polymer, and a barrier layer comprising a second polymer, wherein the active layer and barrier layer are bonded, and wherein the particles are configured such that the rate of drug released from the plurality of particles is no greater than 500% of the rate of drug released from an intact unit dosage form comprising the same amount (w/w) as the plurality of particles, under the following identical conditions: 30 mL of ethanol, 25° C., agitated at 100 rpm for a period of time.
  • the agitation may be performed with any agitator, preferably a USP Type I basket or a Type II paddle.
  • the period of time of agitation is about 15 minutes to about 300 minutes. In some embodiments, the period of time is about 30 minutes or about 240 minutes.
  • the ethanol may be 5% ethanol, 10% ethanol, 20% ethanol, or 40% ethanol.
  • the amount of drug released and/or the rate of drug released from the plurality of particles is about 500% or less of the amount of drug released and/or the rate of drug released from an intact unit dosage form comprising the same amount (w/w) of the plurality of particles. The same amount may refer to total weight of the plurality of particles or the total amount of drug. In some embodiments, the amount or rate is about 50% to about 500%, alternatively about 100% to about 400%, alternatively about 125% to about 300%, or alternatively about 125% to about 200%.
  • the amount of drug released and/or the rate of drug released from the plurality of particles is about 75% to about 300%, alternatively about 100% to about 200%, alternatively about 125% to about 175% of the amount of drug released and/or the rate of drug released from an intact unit dosage form comprising the same amount (w/w) of the plurality of particles.
  • the amount of drug released and/or the rate of drug released from the plurality of particles is about 75% to about 300%, alternatively about 100% to about 200%, alternatively about 125% to about 175% of the amount of drug released and/or the rate of drug released from an intact unit dosage form comprising the same amount (w/w) of the plurality of particles.
  • the amount of drug released and/or the rate of drug released from the plurality of particles is about 75% to about 500%, alternatively about 100% to about 400%, alternatively about 200% to about 350% of the amount of drug released and/or the rate of drug released from an intact unit dosage form comprising the same amount (w/w) of the plurality of particles.
  • the amount of drug released and/or the rate of drug released from the plurality of particles is about 75% to about 400%, alternatively about 100% to about 300%, alternatively about 125% to about 250% of the amount of drug released and/or the rate of drug released from an intact unit dosage form comprising the same amount (w/w) of the plurality of particles.
  • the amount of drug released and/or the rate of drug released from the plurality of particles is about 100% to about 500%, alternatively about 200% to about 450%, alternatively about 300% to about 450% of the amount of drug released and/or the rate of drug released from an intact unit dosage form comprising the same amount (w/w) of the plurality of particles.
  • the amount of drug released and/or the rate of drug released from the plurality of particles is about 100% to about 400%, alternatively about 150% to about 350%, alternatively about 200% to about 300% of the amount of drug released and/or the rate of drug released from an intact unit dosage form comprising the same amount (w/w) of the plurality of particles.
  • the amount of drug released and/or the rate of drug released from the plurality of particles is about 75% to about 300%, alternatively about 100% to about 200%, alternatively about 125% to about 175% of the amount of drug released and/or the rate of drug released from an intact unit dosage form comprising the same amount (w/w) of the plurality of particles.
  • the amount of drug released and/or the rate of drug released from the plurality of particles is about 100% to about 500%, alternatively about 250% to about 450%, alternatively about 350% to about 450% of the amount of drug released and/or the rate of drug released from an intact unit dosage form comprising the same amount (w/w) of the plurality of particles.
  • the plurality of particles has a particle size distribution (D50) of about 100 ⁇ m to about 1000 ⁇ m.
  • D50 particle size distribution
  • D50 is also known as the median diameter or medium value of the particle size distribution, and it refers to the value of the particle diameter at 50% in the cumulative distribution.
  • the plurality of particles comprises a D50 of about 100 ⁇ m to about 1000 ⁇ m, alternatively about 250 ⁇ m to about 750 ⁇ m, alternatively about 400 ⁇ m to about 600 ⁇ m.
  • the present invention comprises a plurality of particles comprising: an active layer comprising a drug and a first polymer, and a barrier layer comprising a second polymer.
  • the active layer may comprise one drug or a combination of two or more drugs.
  • the active layer comprises a drug which is substantially homogeneously distributed in the first polymer. “Substantially homogenously distributed” means that more than 80%, more preferably more than 90%, and most preferably more than 95% of the drug(s) is homogeneously distributed.
  • the first polymer comprises a diffusion polymer.
  • diffusion polymers include, but are not limited to: a quaternary ammonium acrylic or methacrylic polymers, an acrylic or a methacrylic ester copolymers or a mixture thereof, which can also be used as sustained release agents. Common tradenames include various grades of EUDRAGIT®s (all from Röhm), and SURELEASE® (from COLORCON®).
  • the preferred polymers of the diffusion layer are acrylic or methacrylic polymers and particularly ethyl acrylate or methyl methylacrylate dispersions.
  • first polymer examples include, but are not limited to: cellulose, chitin, collagen, nylon, poly(alkylcyanoacrylate), polyethylene, poly(ethylene-co-vinyl acetate), poly(hydroxyethyl methacrylate), poly(hydroxypropylethyl methacrylate), poly(methyl methacrylate), poly(vinyl alcohol-co-methacrylate), poly(vinyl chloride), polyisobutene, polyurethane, and silicone rubber.
  • the active layer may comprise the first polymer and one or more additional polymers.
  • the barrier layer comprises a second polymer.
  • the barrier layer does not comprise a drug.
  • the barrier layer may comprise one or more drugs.
  • the second polymer and the first polymer are the same polymers.
  • the second polymer differs from the first polymer.
  • the second polymer comprises polyacrylates and the copolymers thereof (such as those marked under the tradename EUDRAGIT® NE 30 D), EUDRAGIT® FS 30 D, EUDRAGIT® RS 30 D, SURELEASE® from COLORCON®, AQUACOAT® from FMC®, and mixtures of EUDRAGIT® NE 30 D and AQUACOAT®, polyethylene glycol, polyethylene oxides, polyethylenes, polypropylenes, polyvinyl chlorides, polycarbonates, polystyrenes, and the like.
  • the preferred polymers of the barrier layer are polyacrylate and polyethylene glycol and in particular, a polyacrylate dispersion.
  • the second polymer of the barrier layer does not substantially dissolve in the gastrointestinal tract, mucous membranes, blood vessels or lungs and may pass through the body in a substantially undissolved form. “Substantially undissolved” means that less than 30%, more preferably less than 20%, and most preferably less than 10% of the polymer is dissolved.
  • the active layer and barrier layer are bonded.
  • the bonding of the active layer and barrier layer may contribute to the abuse deterrent effect.
  • the active layer and barrier layer may be bonded by any method known in the art, including but not limited to physical or chemical bonding.
  • the active layer and barrier layer may be physically bonded and the bond may be facilitated by the use of a tablet press or heat curing and choice of polymers.
  • the active layer and barrier layer comprise the same polymer, and the layers are heat cured or pressed together with a tablet press.
  • the active layer and barrier layer are bonded in a manner such that the relative surface area of the active layer increases only marginally, for example, no more than about 50%, preferably no more than about 25%, most preferably no more than about 10%, when particles comprising the active layer and barrier layer are subjected to physical compromise, for example, grinding in a mortar and pestle, pill crusher, or spoon for 300 seconds.
  • the plurality of particles comprises the above-described active layer and barrier layer, and additionally or alternatively has the above-described particle size distribution (D50) of 100 ⁇ m to about 1000 ⁇ m.
  • the present invention also provides for pharmaceutical compositions in unit dosage form comprising the plurality of particles.
  • the pharmaceutical composition comprises a monolithic unit dosage form such as a tablet comprising the plurality of particles.
  • the monolithic unit dosage form may be produced by any known method in the art, for example, by compressing the plurality of particles in a tablet press.
  • the pharmaceutical composition comprises a tablet comprising one or more layers.
  • the composition comprises a layer comprising a drug and one or more hydrophobic polymers.
  • the hydrophobic polymers comprise polyacrylates and the copolymers thereof (such as those marked under the tradename EUDRAGIT® NE 30 D, SURELEASE® from COLORCON®, AQUACOAT® from FMC®, and mixtures of EUDRAGIT® NE 30 D and AQUACOAT®), polyethylene glycol, polyethylene oxides, polyethylenes, polypropylenes, polyvinyl chlorides, polycarbonates, polystyrenes, and the like.
  • the composition comprises polyacrylate and polyethylene glycol and in particular, a polyacrylate dispersion.
  • the pharmaceutical composition further comprises a layer comprising a hydrophilic polymer or a polymer which, when contacted with a liquid, absorbs at least a portion of the liquid and forms a gel.
  • the pharmaceutical composition may optionally contain sustained or extended release and/or enteric coating.
  • sustained or extended release and/or enteric coating examples of such materials are cellulose acetate phthalate, hydroxypropyl methylcellulose phthalate, polyvinyl acetate phthalate, methacrylic acid:acrylic ester copolymer, hydroxypropyl methylcellulose acetate succinate, shellac, cellulose acetate trimellitate, and mixtures thereof.
  • the pharmaceutical composition may also contain water-soluble polymers such as polyvinylpyrrolidone, hydroxypropyl cellulose, hydroxypropyl methylcellulose, polyethylene glycol having a molecular weight of from 1,700 to 20,000 and polyvinyl alcohol and monomers therefor and mixtures thereof.
  • sustained, extended and enteric coating materials is generally known in the pharmaceutical arts, and as would be understood to one skilled in the art, any suitable sustained, extended and enteric coating materials or similar agents may be used in conjunction with the present invention and embodiments thereof.
  • Other components may be added to any or all of the various layers provided that they do not interfere with the drug and provide a desired benefit to the pharmaceutical.
  • exemplary of such other components are: plasticizers, anti-adhesive, inert fillers, lipophilic agents and pigments used in a known manner. Tackiness of the water-dispersible film forming substance may be overcome by simply incorporating an anti-adhesive in the coating.
  • anti-adhesive are metallic stearates, microcrystalline cellulose, calcium phosphate, and talc.
  • the pharmaceutical composition of the present invention may also further comprise one or more pharmaceutically acceptable excipients including, but are not limited to, the following: plasticizers, anti-adhesives, fillers/diluents/binders, disintegrants, glidants and lubricants, surfactants, colorants, flavoring agents, pH adjusting agents, solubilizing agents, wetting agents, solvent resistant agents and buffering agents.
  • pharmaceutically acceptable excipients including, but are not limited to, the following: plasticizers, anti-adhesives, fillers/diluents/binders, disintegrants, glidants and lubricants, surfactants, colorants, flavoring agents, pH adjusting agents, solubilizing agents, wetting agents, solvent resistant agents and buffering agents.
  • suitable pharmaceutically acceptable excipients are described in Remington: The Science and Practice of Pharmacy , Lippincott Williams and Wilkins, Baltimore, Md. (1995), incorporated herein by reference.
  • plasticizers include, but are not limited to, triacetin, acetylated monoglyceride, olive oil, acetyl tributyl citrate, acetyl triethyl citrate, glycerin, sorbitol, polyethylene glycol, and polypropyleneglycol.
  • anti-adhesives include, but are not limited to, metallic stearates, microcrystalline cellulose, calcium phosphate, AEROSIL® 200, and talc. Those of ordinary skill in the art would understand the need for and applicability of such other components to overcome manufacturing, shelf-life or release profile issues.
  • fillers/diluents/binders include, but are not limited to, sucrose, sorbitol, mannitol, various grades of lactose, various grades of microcrystalline cellulose, dextrins, maltodextrins, starches or modified starches, sodium phosphate, calcium phosphate, calcium carbonate, gelatin, polyvinylpyrrolidone, and sodium carboxymethylcellulose.
  • disintegrants include, but are not limited to, cellulose derivatives, including microcrystalline cellulose, low-substituted hydroxypropyl cellulose, croscarmellose sodium, alginic acid, insoluble polyvinlypyrrolidone, and sodium carboxymethyl starch.
  • glidants and lubricants may be incorporated such as stearic acid, metallic stearates, talc, waxes, and glycerides with high melting temperatures, colloidal silica, sodium stearyl fumarate, polyethyleneglycols, and alkyl sulphates.
  • surfactants include, but are not limited to, non-ionic surfactants (such as various grades of polysorbate); anionic surfactants (such as docusate sodium and sodium lauryl sulfate), and cationic surfactants (such as benzalkonium chloride).
  • anionic surfactants such as docusate sodium and sodium lauryl sulfate
  • cationic surfactants such as benzalkonium chloride.
  • An example of an amphoteric surfactant is 1,2-diacyl-L-phosphatidylcholine.
  • compositions may include colorants, flavoring agents, pH adjusting agents, solubilizing agents, wetting agents, solvent resistant agents and buffering agents.
  • the present invention also provides methods of making the pharmaceutical composition of the present invention.
  • the method may comprise forming a core or layer comprising a drug, and applying a coating comprising pH-dependent agent and a pH-independent agent to the core or layer.
  • the coating may be applied by any conventional technique, including, but not limited to, pan coating, fluid bed coating or spray coating.
  • the coating may be applied, for example, as a solution, suspension, spray, dust or powder.
  • the one or more coatings are applied by spray coating.
  • the present invention also provides methods of treating or reducing the symptoms associated with a medical condition, comprising administering to a subject in need thereof the pharmaceutical composition of the present invention.
  • the medical condition is a disease, disorder, illness, medical state, syndrome, or morbidity which would be improved, alleviated, treated, cured, or ameliorated by the administration of drug.
  • TEST A tablets which are tablets of the present invention
  • TEST B tablets and ROXICODONE® tablets, which are comparative tablets.
  • TABLE 2 shows the dissolution profile in neutral pH conditions (deionized water).
  • the following study was conducted to determine the relative bioavailability and abuse potential of equivalent doses of a crushed and intact formulation.
  • the study was a randomized, double-blind study, wherein 26 subjects were tested.
  • the following formulation was tested:
  • An extended release tablet formulation of the present invention containing 60 mg of morphine sulfate pentahydrate was tested.
  • the following study was conducted to determine the effect of ethanol on the amount of drug released and rate of drug release.
  • the study compared the effect of ethanol on particles having a particle size distribution (D50) of about 425 ⁇ m, compared to the effect of ethanol on an intact tablet dosage form containing the equivalent amount of particles. Both the particles and the intact dosage forms were placed under identical conditions: 30 mL of ethanol (5%, 10%, 20%, and 40%), agitated at 100 rpm at 25° C. for either 30 minutes or 240 minutes. The results can be found in FIG. 1 .

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US11571390B2 (en) 2023-02-07
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